Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Print and select stack frames for GDB, the GNU debugger. |
8926118c | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 | |
0fd88904 | 5 | Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
21 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
22 | Boston, MA 02110-1301, USA. */ | |
c906108c | 23 | |
c906108c | 24 | #include "defs.h" |
c906108c SS |
25 | #include "value.h" |
26 | #include "symtab.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "language.h" | |
30 | #include "frame.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "gdbcore.h" | |
33 | #include "target.h" | |
0378c332 | 34 | #include "source.h" |
c906108c SS |
35 | #include "breakpoint.h" |
36 | #include "demangle.h" | |
37 | #include "inferior.h" | |
38 | #include "annotate.h" | |
8b93c638 | 39 | #include "ui-out.h" |
fe898f56 | 40 | #include "block.h" |
b9362cc7 | 41 | #include "stack.h" |
de4f826b | 42 | #include "dictionary.h" |
60250e8b | 43 | #include "exceptions.h" |
898c62f5 | 44 | #include "reggroups.h" |
fc70c2a0 | 45 | #include "regcache.h" |
a77053c2 | 46 | #include "solib.h" |
033a42c2 | 47 | #include "valprint.h" |
c906108c | 48 | |
033a42c2 MK |
49 | #include "gdb_assert.h" |
50 | #include <ctype.h> | |
51 | #include "gdb_string.h" | |
c906108c | 52 | |
9a4105ab | 53 | void (*deprecated_selected_frame_level_changed_hook) (int); |
c906108c | 54 | |
a58dd373 | 55 | /* Prototypes for local functions. */ |
c906108c | 56 | |
d9fcf2fb JM |
57 | static void print_frame_local_vars (struct frame_info *, int, |
58 | struct ui_file *); | |
c906108c | 59 | |
033a42c2 MK |
60 | static void print_frame (struct frame_info *frame, int print_level, |
61 | enum print_what print_what, int print_args, | |
c5394b80 JM |
62 | struct symtab_and_line sal); |
63 | ||
c906108c SS |
64 | /* Zero means do things normally; we are interacting directly with the |
65 | user. One means print the full filename and linenumber when a | |
66 | frame is printed, and do so in a format emacs18/emacs19.22 can | |
67 | parse. Two means print similar annotations, but in many more | |
68 | cases and in a slightly different syntax. */ | |
69 | ||
70 | int annotation_level = 0; | |
c906108c | 71 | \f |
c5aa993b JM |
72 | |
73 | struct print_stack_frame_args | |
033a42c2 MK |
74 | { |
75 | struct frame_info *frame; | |
76 | int print_level; | |
77 | enum print_what print_what; | |
78 | int print_args; | |
79 | }; | |
80 | ||
81 | /* Show or print the frame arguments; stub for catch_errors. */ | |
82 | ||
c906108c | 83 | static int |
fba45db2 | 84 | print_stack_frame_stub (void *args) |
c906108c | 85 | { |
c789492a | 86 | struct print_stack_frame_args *p = args; |
033a42c2 | 87 | int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC); |
c906108c | 88 | |
033a42c2 MK |
89 | print_frame_info (p->frame, p->print_level, p->print_what, p->print_args); |
90 | set_current_sal_from_frame (p->frame, center); | |
c906108c SS |
91 | return 0; |
92 | } | |
93 | ||
033a42c2 | 94 | /* Show or print a stack frame FRAME briefly. The output is format |
d762c46a AC |
95 | according to PRINT_LEVEL and PRINT_WHAT printing the frame's |
96 | relative level, function name, argument list, and file name and | |
97 | line number. If the frame's PC is not at the beginning of the | |
98 | source line, the actual PC is printed at the beginning. */ | |
c906108c SS |
99 | |
100 | void | |
033a42c2 | 101 | print_stack_frame (struct frame_info *frame, int print_level, |
0faf0076 | 102 | enum print_what print_what) |
c906108c SS |
103 | { |
104 | struct print_stack_frame_args args; | |
105 | ||
033a42c2 | 106 | args.frame = frame; |
0faf0076 AC |
107 | args.print_level = print_level; |
108 | args.print_what = print_what; | |
109 | args.print_args = 1; | |
c906108c | 110 | |
033a42c2 | 111 | catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ALL); |
7789c6f5 | 112 | } |
c906108c | 113 | |
c5aa993b JM |
114 | struct print_args_args |
115 | { | |
c906108c | 116 | struct symbol *func; |
033a42c2 | 117 | struct frame_info *frame; |
d9fcf2fb | 118 | struct ui_file *stream; |
c906108c SS |
119 | }; |
120 | ||
033a42c2 | 121 | static int print_args_stub (void *args); |
c906108c | 122 | |
033a42c2 MK |
123 | /* Print nameless arguments of frame FRAME on STREAM, where START is |
124 | the offset of the first nameless argument, and NUM is the number of | |
125 | nameless arguments to print. FIRST is nonzero if this is the first | |
126 | argument (not just the first nameless argument). */ | |
8d3b0994 AC |
127 | |
128 | static void | |
033a42c2 | 129 | print_frame_nameless_args (struct frame_info *frame, long start, int num, |
8d3b0994 AC |
130 | int first, struct ui_file *stream) |
131 | { | |
132 | int i; | |
133 | CORE_ADDR argsaddr; | |
134 | long arg_value; | |
135 | ||
136 | for (i = 0; i < num; i++) | |
137 | { | |
138 | QUIT; | |
033a42c2 | 139 | argsaddr = get_frame_args_address (frame); |
8d3b0994 AC |
140 | if (!argsaddr) |
141 | return; | |
142 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
143 | if (!first) | |
144 | fprintf_filtered (stream, ", "); | |
145 | fprintf_filtered (stream, "%ld", arg_value); | |
146 | first = 0; | |
147 | start += sizeof (int); | |
148 | } | |
149 | } | |
150 | ||
033a42c2 MK |
151 | /* Print the arguments of frame FRAME on STREAM, given the function |
152 | FUNC running in that frame (as a symbol), where NUM is the number | |
153 | of arguments according to the stack frame (or -1 if the number of | |
154 | arguments is unknown). */ | |
8d3b0994 | 155 | |
033a42c2 MK |
156 | /* Note that currently the "number of argumentss according to the |
157 | stack frame" is only known on VAX where i refers to the "number of | |
158 | ints of argumentss according to the stack frame". */ | |
8d3b0994 AC |
159 | |
160 | static void | |
033a42c2 MK |
161 | print_frame_args (struct symbol *func, struct frame_info *frame, |
162 | int num, struct ui_file *stream) | |
8d3b0994 | 163 | { |
8d3b0994 | 164 | int first = 1; |
8d3b0994 | 165 | /* Offset of next stack argument beyond the one we have seen that is |
033a42c2 MK |
166 | at the highest offset, or -1 if we haven't come to a stack |
167 | argument yet. */ | |
8d3b0994 | 168 | long highest_offset = -1; |
8d3b0994 AC |
169 | /* Number of ints of arguments that we have printed so far. */ |
170 | int args_printed = 0; | |
171 | struct cleanup *old_chain, *list_chain; | |
172 | struct ui_stream *stb; | |
173 | ||
174 | stb = ui_out_stream_new (uiout); | |
175 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
176 | ||
177 | if (func) | |
178 | { | |
033a42c2 MK |
179 | struct block *b = SYMBOL_BLOCK_VALUE (func); |
180 | struct dict_iterator iter; | |
181 | struct symbol *sym; | |
182 | struct value *val; | |
8d3b0994 | 183 | |
de4f826b | 184 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
8d3b0994 AC |
185 | { |
186 | QUIT; | |
187 | ||
188 | /* Keep track of the highest stack argument offset seen, and | |
189 | skip over any kinds of symbols we don't care about. */ | |
190 | ||
191 | switch (SYMBOL_CLASS (sym)) | |
192 | { | |
193 | case LOC_ARG: | |
194 | case LOC_REF_ARG: | |
195 | { | |
196 | long current_offset = SYMBOL_VALUE (sym); | |
033a42c2 | 197 | int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); |
8d3b0994 AC |
198 | |
199 | /* Compute address of next argument by adding the size of | |
200 | this argument and rounding to an int boundary. */ | |
201 | current_offset = | |
202 | ((current_offset + arg_size + sizeof (int) - 1) | |
203 | & ~(sizeof (int) - 1)); | |
204 | ||
033a42c2 MK |
205 | /* If this is the highest offset seen yet, set |
206 | highest_offset. */ | |
8d3b0994 AC |
207 | if (highest_offset == -1 |
208 | || (current_offset > highest_offset)) | |
209 | highest_offset = current_offset; | |
210 | ||
033a42c2 MK |
211 | /* Add the number of ints we're about to print to |
212 | args_printed. */ | |
8d3b0994 AC |
213 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); |
214 | } | |
215 | ||
033a42c2 MK |
216 | /* We care about types of symbols, but don't need to |
217 | keep track of stack offsets in them. */ | |
8d3b0994 AC |
218 | case LOC_REGPARM: |
219 | case LOC_REGPARM_ADDR: | |
220 | case LOC_LOCAL_ARG: | |
221 | case LOC_BASEREG_ARG: | |
222 | case LOC_COMPUTED_ARG: | |
223 | break; | |
224 | ||
225 | /* Other types of symbols we just skip over. */ | |
226 | default: | |
227 | continue; | |
228 | } | |
229 | ||
230 | /* We have to look up the symbol because arguments can have | |
231 | two entries (one a parameter, one a local) and the one we | |
232 | want is the local, which lookup_symbol will find for us. | |
033a42c2 | 233 | This includes gcc1 (not gcc2) on SPARC when passing a |
8d3b0994 AC |
234 | small structure and gcc2 when the argument type is float |
235 | and it is passed as a double and converted to float by | |
236 | the prologue (in the latter case the type of the LOC_ARG | |
237 | symbol is double and the type of the LOC_LOCAL symbol is | |
238 | float). */ | |
033a42c2 MK |
239 | /* But if the parameter name is null, don't try it. Null |
240 | parameter names occur on the RS/6000, for traceback | |
241 | tables. FIXME, should we even print them? */ | |
8d3b0994 AC |
242 | |
243 | if (*DEPRECATED_SYMBOL_NAME (sym)) | |
244 | { | |
245 | struct symbol *nsym; | |
033a42c2 MK |
246 | nsym = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
247 | b, VAR_DOMAIN, NULL, NULL); | |
8d3b0994 AC |
248 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER) |
249 | { | |
033a42c2 MK |
250 | /* There is a LOC_ARG/LOC_REGISTER pair. This means |
251 | that it was passed on the stack and loaded into a | |
252 | register, or passed in a register and stored in a | |
253 | stack slot. GDB 3.x used the LOC_ARG; GDB | |
254 | 4.0-4.11 used the LOC_REGISTER. | |
8d3b0994 AC |
255 | |
256 | Reasons for using the LOC_ARG: | |
033a42c2 MK |
257 | |
258 | (1) Because find_saved_registers may be slow for | |
259 | remote debugging. | |
260 | ||
261 | (2) Because registers are often re-used and stack | |
262 | slots rarely (never?) are. Therefore using | |
263 | the stack slot is much less likely to print | |
264 | garbage. | |
8d3b0994 AC |
265 | |
266 | Reasons why we might want to use the LOC_REGISTER: | |
033a42c2 MK |
267 | |
268 | (1) So that the backtrace prints the same value | |
269 | as "print foo". I see no compelling reason | |
270 | why this needs to be the case; having the | |
271 | backtrace print the value which was passed | |
272 | in, and "print foo" print the value as | |
273 | modified within the called function, makes | |
274 | perfect sense to me. | |
275 | ||
276 | Additional note: It might be nice if "info args" | |
277 | displayed both values. | |
278 | ||
279 | One more note: There is a case with SPARC | |
280 | structure passing where we need to use the | |
281 | LOC_REGISTER, but this is dealt with by creating | |
282 | a single LOC_REGPARM in symbol reading. */ | |
8d3b0994 AC |
283 | |
284 | /* Leave sym (the LOC_ARG) alone. */ | |
285 | ; | |
286 | } | |
287 | else | |
288 | sym = nsym; | |
289 | } | |
290 | ||
291 | /* Print the current arg. */ | |
292 | if (!first) | |
293 | ui_out_text (uiout, ", "); | |
294 | ui_out_wrap_hint (uiout, " "); | |
295 | ||
296 | annotate_arg_begin (); | |
297 | ||
298 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
299 | fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym), | |
033a42c2 MK |
300 | SYMBOL_LANGUAGE (sym), |
301 | DMGL_PARAMS | DMGL_ANSI); | |
8d3b0994 AC |
302 | ui_out_field_stream (uiout, "name", stb); |
303 | annotate_arg_name_end (); | |
304 | ui_out_text (uiout, "="); | |
305 | ||
033a42c2 MK |
306 | /* Avoid value_print because it will deref ref parameters. |
307 | We just want to print their addresses. Print ??? for | |
308 | args whose address we do not know. We pass 2 as | |
309 | "recurse" to val_print because our standard indentation | |
310 | here is 4 spaces, and val_print indents 2 for each | |
311 | recurse. */ | |
312 | val = read_var_value (sym, frame); | |
8d3b0994 | 313 | |
df407dfe | 314 | annotate_arg_value (val == NULL ? NULL : value_type (val)); |
8d3b0994 AC |
315 | |
316 | if (val) | |
317 | { | |
806048c6 | 318 | common_val_print (val, stb->stream, 0, 0, 2, Val_no_prettyprint); |
8d3b0994 AC |
319 | ui_out_field_stream (uiout, "value", stb); |
320 | } | |
321 | else | |
322 | ui_out_text (uiout, "???"); | |
323 | ||
324 | /* Invoke ui_out_tuple_end. */ | |
325 | do_cleanups (list_chain); | |
326 | ||
327 | annotate_arg_end (); | |
328 | ||
329 | first = 0; | |
330 | } | |
331 | } | |
332 | ||
333 | /* Don't print nameless args in situations where we don't know | |
334 | enough about the stack to find them. */ | |
335 | if (num != -1) | |
336 | { | |
337 | long start; | |
338 | ||
339 | if (highest_offset == -1) | |
340 | start = FRAME_ARGS_SKIP; | |
341 | else | |
342 | start = highest_offset; | |
343 | ||
033a42c2 | 344 | print_frame_nameless_args (frame, start, num - args_printed, |
8d3b0994 AC |
345 | first, stream); |
346 | } | |
033a42c2 | 347 | |
8d3b0994 AC |
348 | do_cleanups (old_chain); |
349 | } | |
350 | ||
033a42c2 | 351 | /* Stub for catch_errors. */ |
c906108c SS |
352 | |
353 | static int | |
4efb68b1 | 354 | print_args_stub (void *args) |
c906108c | 355 | { |
033a42c2 | 356 | struct print_args_args *p = args; |
c906108c | 357 | int numargs; |
c906108c | 358 | |
983a287a AC |
359 | if (FRAME_NUM_ARGS_P ()) |
360 | { | |
033a42c2 | 361 | numargs = FRAME_NUM_ARGS (p->frame); |
983a287a AC |
362 | gdb_assert (numargs >= 0); |
363 | } | |
364 | else | |
365 | numargs = -1; | |
033a42c2 | 366 | print_frame_args (p->func, p->frame, numargs, p->stream); |
c906108c SS |
367 | return 0; |
368 | } | |
369 | ||
033a42c2 MK |
370 | /* Set the current source and line to the location given by frame |
371 | FRAME, if possible. When CENTER is true, adjust so the relevant | |
372 | line is in the center of the next 'list'. */ | |
c789492a | 373 | |
7abfe014 | 374 | void |
033a42c2 | 375 | set_current_sal_from_frame (struct frame_info *frame, int center) |
c789492a FL |
376 | { |
377 | struct symtab_and_line sal; | |
378 | ||
033a42c2 | 379 | find_frame_sal (frame, &sal); |
c789492a FL |
380 | if (sal.symtab) |
381 | { | |
382 | if (center) | |
383 | sal.line = max (sal.line - get_lines_to_list () / 2, 1); | |
384 | set_current_source_symtab_and_line (&sal); | |
385 | } | |
386 | } | |
387 | ||
033a42c2 MK |
388 | /* Print information about frame FRAME. The output is format according |
389 | to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of | |
390 | PRINT_WHAT is: | |
391 | ||
392 | SRC_LINE: Print only source line. | |
393 | LOCATION: Print only location. | |
394 | LOC_AND_SRC: Print location and source line. | |
395 | ||
396 | Used in "where" output, and to emit breakpoint or step | |
397 | messages. */ | |
c906108c | 398 | |
7789c6f5 | 399 | void |
033a42c2 | 400 | print_frame_info (struct frame_info *frame, int print_level, |
0faf0076 | 401 | enum print_what print_what, int print_args) |
c906108c SS |
402 | { |
403 | struct symtab_and_line sal; | |
c5394b80 JM |
404 | int source_print; |
405 | int location_print; | |
c906108c | 406 | |
033a42c2 MK |
407 | if (get_frame_type (frame) == DUMMY_FRAME |
408 | || get_frame_type (frame) == SIGTRAMP_FRAME) | |
c906108c | 409 | { |
075559bc AC |
410 | struct cleanup *uiout_cleanup |
411 | = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); | |
c906108c | 412 | |
033a42c2 MK |
413 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
414 | get_frame_pc (frame)); | |
6a3fe0a4 | 415 | |
c906108c | 416 | /* Do this regardless of SOURCE because we don't have any source |
c5aa993b | 417 | to list for this frame. */ |
0faf0076 | 418 | if (print_level) |
52c6a6ac JJ |
419 | { |
420 | ui_out_text (uiout, "#"); | |
0faf0076 | 421 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 422 | frame_relative_level (frame)); |
52c6a6ac | 423 | } |
075559bc | 424 | if (ui_out_is_mi_like_p (uiout)) |
52c6a6ac | 425 | { |
075559bc | 426 | annotate_frame_address (); |
033a42c2 | 427 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
075559bc | 428 | annotate_frame_address_end (); |
52c6a6ac | 429 | } |
6a3fe0a4 | 430 | |
033a42c2 | 431 | if (get_frame_type (frame) == DUMMY_FRAME) |
075559bc AC |
432 | { |
433 | annotate_function_call (); | |
434 | ui_out_field_string (uiout, "func", "<function called from gdb>"); | |
435 | } | |
033a42c2 | 436 | else if (get_frame_type (frame) == SIGTRAMP_FRAME) |
075559bc AC |
437 | { |
438 | annotate_signal_handler_caller (); | |
439 | ui_out_field_string (uiout, "func", "<signal handler called>"); | |
440 | } | |
441 | ui_out_text (uiout, "\n"); | |
c906108c | 442 | annotate_frame_end (); |
075559bc AC |
443 | |
444 | do_cleanups (uiout_cleanup); | |
c906108c SS |
445 | return; |
446 | } | |
447 | ||
033a42c2 MK |
448 | /* If FRAME is not the innermost frame, that normally means that |
449 | FRAME->pc points to *after* the call instruction, and we want to | |
450 | get the line containing the call, never the next line. But if | |
451 | the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the | |
452 | next frame was not entered as the result of a call, and we want | |
453 | to get the line containing FRAME->pc. */ | |
454 | find_frame_sal (frame, &sal); | |
c906108c | 455 | |
0faf0076 AC |
456 | location_print = (print_what == LOCATION |
457 | || print_what == LOC_AND_ADDRESS | |
458 | || print_what == SRC_AND_LOC); | |
c5394b80 JM |
459 | |
460 | if (location_print || !sal.symtab) | |
033a42c2 | 461 | print_frame (frame, print_level, print_what, print_args, sal); |
c5394b80 | 462 | |
0faf0076 | 463 | source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC); |
0378c332 | 464 | |
c5394b80 JM |
465 | if (source_print && sal.symtab) |
466 | { | |
467 | int done = 0; | |
0faf0076 | 468 | int mid_statement = ((print_what == SRC_LINE) |
033a42c2 | 469 | && (get_frame_pc (frame) != sal.pc)); |
c5394b80 JM |
470 | |
471 | if (annotation_level) | |
472 | done = identify_source_line (sal.symtab, sal.line, mid_statement, | |
033a42c2 | 473 | get_frame_pc (frame)); |
c5394b80 JM |
474 | if (!done) |
475 | { | |
9a4105ab | 476 | if (deprecated_print_frame_info_listing_hook) |
cbd3c883 MS |
477 | deprecated_print_frame_info_listing_hook (sal.symtab, |
478 | sal.line, | |
479 | sal.line + 1, 0); | |
ba4bbdcb | 480 | else |
c5394b80 | 481 | { |
ba4bbdcb KS |
482 | /* We used to do this earlier, but that is clearly |
483 | wrong. This function is used by many different | |
484 | parts of gdb, including normal_stop in infrun.c, | |
485 | which uses this to print out the current PC | |
486 | when we stepi/nexti into the middle of a source | |
487 | line. Only the command line really wants this | |
488 | behavior. Other UIs probably would like the | |
cbd3c883 | 489 | ability to decide for themselves if it is desired. */ |
ba4bbdcb KS |
490 | if (addressprint && mid_statement) |
491 | { | |
033a42c2 | 492 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
ba4bbdcb | 493 | ui_out_text (uiout, "\t"); |
ba4bbdcb KS |
494 | } |
495 | ||
496 | print_source_lines (sal.symtab, sal.line, sal.line + 1, 0); | |
c5394b80 | 497 | } |
c5394b80 | 498 | } |
c5394b80 JM |
499 | } |
500 | ||
0faf0076 | 501 | if (print_what != LOCATION) |
033a42c2 | 502 | set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line); |
c5394b80 JM |
503 | |
504 | annotate_frame_end (); | |
505 | ||
506 | gdb_flush (gdb_stdout); | |
507 | } | |
508 | ||
509 | static void | |
033a42c2 MK |
510 | print_frame (struct frame_info *frame, int print_level, |
511 | enum print_what print_what, int print_args, | |
c5394b80 JM |
512 | struct symtab_and_line sal) |
513 | { | |
514 | struct symbol *func; | |
033a42c2 | 515 | char *funname = NULL; |
c5394b80 | 516 | enum language funlang = language_unknown; |
8b93c638 | 517 | struct ui_stream *stb; |
033a42c2 | 518 | struct cleanup *old_chain, *list_chain; |
8b93c638 JM |
519 | |
520 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 521 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
c5394b80 | 522 | |
033a42c2 | 523 | func = find_pc_function (get_frame_address_in_block (frame)); |
c906108c SS |
524 | if (func) |
525 | { | |
526 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
527 | function (when we are in the first function in a file which |
528 | is compiled without debugging symbols, the previous function | |
529 | is compiled with debugging symbols, and the "foo.o" symbol | |
033a42c2 MK |
530 | that is supposed to tell us where the file with debugging |
531 | symbols ends has been truncated by ar because it is longer | |
532 | than 15 characters). This also occurs if the user uses asm() | |
533 | to create a function but not stabs for it (in a file compiled | |
534 | with -g). | |
c5aa993b JM |
535 | |
536 | So look in the minimal symbol tables as well, and if it comes | |
537 | up with a larger address for the function use that instead. | |
033a42c2 MK |
538 | I don't think this can ever cause any problems; there |
539 | shouldn't be any minimal symbols in the middle of a function; | |
540 | if this is ever changed many parts of GDB will need to be | |
541 | changed (and we'll create a find_pc_minimal_function or some | |
542 | such). */ | |
543 | ||
544 | struct minimal_symbol *msymbol = | |
545 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
c906108c | 546 | |
c906108c | 547 | if (msymbol != NULL |
c5aa993b | 548 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c SS |
549 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
550 | { | |
c906108c SS |
551 | /* We also don't know anything about the function besides |
552 | its address and name. */ | |
553 | func = 0; | |
22abf04a | 554 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
555 | funlang = SYMBOL_LANGUAGE (msymbol); |
556 | } | |
557 | else | |
558 | { | |
22abf04a | 559 | funname = DEPRECATED_SYMBOL_NAME (func); |
c906108c | 560 | funlang = SYMBOL_LANGUAGE (func); |
c5aa993b JM |
561 | if (funlang == language_cplus) |
562 | { | |
033a42c2 MK |
563 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, |
564 | to display the demangled name that we already have | |
565 | stored in the symbol table, but we stored a version | |
566 | with DMGL_PARAMS turned on, and here we don't want to | |
567 | display parameters. So call the demangler again, with | |
568 | DMGL_ANSI only. | |
569 | ||
570 | Yes, printf_symbol_filtered() will again try to | |
571 | demangle the name on the fly, but the issue is that | |
572 | if cplus_demangle() fails here, it will fail there | |
573 | too. So we want to catch the failure (where DEMANGLED | |
574 | is NULL below) here, while we still have our hands on | |
575 | the function symbol.) */ | |
576 | char *demangled = cplus_demangle (funname, DMGL_ANSI); | |
c5aa993b | 577 | if (demangled == NULL) |
c5394b80 | 578 | /* If the demangler fails, try the demangled name from |
033a42c2 MK |
579 | the symbol table. That'll have parameters, but |
580 | that's preferable to displaying a mangled name. */ | |
de5ad195 | 581 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b | 582 | } |
c906108c SS |
583 | } |
584 | } | |
585 | else | |
586 | { | |
033a42c2 MK |
587 | struct minimal_symbol *msymbol = |
588 | lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame)); | |
589 | ||
c906108c SS |
590 | if (msymbol != NULL) |
591 | { | |
22abf04a | 592 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
593 | funlang = SYMBOL_LANGUAGE (msymbol); |
594 | } | |
595 | } | |
596 | ||
033a42c2 MK |
597 | annotate_frame_begin (print_level ? frame_relative_level (frame) : 0, |
598 | get_frame_pc (frame)); | |
c5394b80 | 599 | |
666547aa | 600 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame"); |
c5394b80 | 601 | |
0faf0076 | 602 | if (print_level) |
8b93c638 | 603 | { |
8b93c638 | 604 | ui_out_text (uiout, "#"); |
0faf0076 | 605 | ui_out_field_fmt_int (uiout, 2, ui_left, "level", |
033a42c2 | 606 | frame_relative_level (frame)); |
8b93c638 | 607 | } |
c5394b80 | 608 | if (addressprint) |
033a42c2 | 609 | if (get_frame_pc (frame) != sal.pc || !sal.symtab |
0faf0076 | 610 | || print_what == LOC_AND_ADDRESS) |
c5394b80 JM |
611 | { |
612 | annotate_frame_address (); | |
033a42c2 | 613 | ui_out_field_core_addr (uiout, "addr", get_frame_pc (frame)); |
8b93c638 JM |
614 | annotate_frame_address_end (); |
615 | ui_out_text (uiout, " in "); | |
c5394b80 JM |
616 | } |
617 | annotate_frame_function_name (); | |
033a42c2 MK |
618 | fprintf_symbol_filtered (stb->stream, funname ? funname : "??", |
619 | funlang, DMGL_ANSI); | |
8b93c638 JM |
620 | ui_out_field_stream (uiout, "func", stb); |
621 | ui_out_wrap_hint (uiout, " "); | |
c5394b80 JM |
622 | annotate_frame_args (); |
623 | ||
8b93c638 | 624 | ui_out_text (uiout, " ("); |
0faf0076 | 625 | if (print_args) |
c906108c | 626 | { |
c5394b80 | 627 | struct print_args_args args; |
d493eb33 | 628 | struct cleanup *args_list_chain; |
033a42c2 | 629 | args.frame = frame; |
c5394b80 JM |
630 | args.func = func; |
631 | args.stream = gdb_stdout; | |
68c81b54 | 632 | args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args"); |
c5394b80 | 633 | catch_errors (print_args_stub, &args, "", RETURN_MASK_ALL); |
033a42c2 MK |
634 | /* FIXME: ARGS must be a list. If one argument is a string it |
635 | will have " that will not be properly escaped. */ | |
666547aa | 636 | /* Invoke ui_out_tuple_end. */ |
d493eb33 | 637 | do_cleanups (args_list_chain); |
c5394b80 JM |
638 | QUIT; |
639 | } | |
8b93c638 | 640 | ui_out_text (uiout, ")"); |
c5394b80 JM |
641 | if (sal.symtab && sal.symtab->filename) |
642 | { | |
643 | annotate_frame_source_begin (); | |
8b93c638 JM |
644 | ui_out_wrap_hint (uiout, " "); |
645 | ui_out_text (uiout, " at "); | |
646 | annotate_frame_source_file (); | |
647 | ui_out_field_string (uiout, "file", sal.symtab->filename); | |
76ff342d DJ |
648 | if (ui_out_is_mi_like_p (uiout)) |
649 | { | |
650 | const char *fullname = symtab_to_fullname (sal.symtab); | |
651 | if (fullname != NULL) | |
652 | ui_out_field_string (uiout, "fullname", fullname); | |
653 | } | |
8b93c638 JM |
654 | annotate_frame_source_file_end (); |
655 | ui_out_text (uiout, ":"); | |
656 | annotate_frame_source_line (); | |
657 | ui_out_field_int (uiout, "line", sal.line); | |
c5394b80 JM |
658 | annotate_frame_source_end (); |
659 | } | |
c906108c | 660 | |
c5394b80 | 661 | if (!funname || (!sal.symtab || !sal.symtab->filename)) |
c906108c | 662 | { |
a77053c2 | 663 | #ifdef PC_SOLIB |
033a42c2 | 664 | char *lib = PC_SOLIB (get_frame_pc (frame)); |
a77053c2 | 665 | #else |
033a42c2 | 666 | char *lib = solib_address (get_frame_pc (frame)); |
a77053c2 | 667 | #endif |
c5394b80 | 668 | if (lib) |
c906108c | 669 | { |
c5394b80 | 670 | annotate_frame_where (); |
8b93c638 JM |
671 | ui_out_wrap_hint (uiout, " "); |
672 | ui_out_text (uiout, " from "); | |
673 | ui_out_field_string (uiout, "from", lib); | |
c906108c | 674 | } |
c906108c | 675 | } |
e514a9d6 | 676 | |
666547aa | 677 | /* do_cleanups will call ui_out_tuple_end() for us. */ |
e6e0bfab | 678 | do_cleanups (list_chain); |
8b93c638 JM |
679 | ui_out_text (uiout, "\n"); |
680 | do_cleanups (old_chain); | |
c906108c SS |
681 | } |
682 | \f | |
033a42c2 MK |
683 | /* Show the frame info. If this is the tui, it will be shown in the |
684 | source display otherwise, nothing is done. */ | |
685 | ||
c906108c | 686 | void |
033a42c2 | 687 | show_stack_frame (struct frame_info *frame) |
c906108c | 688 | { |
c906108c | 689 | } |
c906108c | 690 | \f |
c5aa993b | 691 | |
033a42c2 MK |
692 | /* Read a frame specification in whatever the appropriate format is |
693 | from FRAME_EXP. Call error(), printing MESSAGE, if the | |
694 | specification is in any way invalid (so this function never returns | |
695 | NULL). When SEPECTED_P is non-NULL set its target to indicate that | |
696 | the default selected frame was used. */ | |
c906108c | 697 | |
1c8831c5 AC |
698 | static struct frame_info * |
699 | parse_frame_specification_1 (const char *frame_exp, const char *message, | |
700 | int *selected_frame_p) | |
c906108c | 701 | { |
1c8831c5 AC |
702 | int numargs; |
703 | struct value *args[4]; | |
704 | CORE_ADDR addrs[ARRAY_SIZE (args)]; | |
c5aa993b | 705 | |
1c8831c5 AC |
706 | if (frame_exp == NULL) |
707 | numargs = 0; | |
708 | else | |
c906108c | 709 | { |
1c8831c5 | 710 | char *addr_string; |
c906108c SS |
711 | struct cleanup *tmp_cleanup; |
712 | ||
1c8831c5 AC |
713 | numargs = 0; |
714 | while (1) | |
c906108c | 715 | { |
1c8831c5 AC |
716 | char *addr_string; |
717 | struct cleanup *cleanup; | |
718 | const char *p; | |
719 | ||
720 | /* Skip leading white space, bail of EOL. */ | |
721 | while (isspace (*frame_exp)) | |
722 | frame_exp++; | |
723 | if (!*frame_exp) | |
724 | break; | |
c906108c | 725 | |
1c8831c5 AC |
726 | /* Parse the argument, extract it, save it. */ |
727 | for (p = frame_exp; | |
728 | *p && !isspace (*p); | |
729 | p++); | |
730 | addr_string = savestring (frame_exp, p - frame_exp); | |
c906108c | 731 | frame_exp = p; |
1c8831c5 AC |
732 | cleanup = make_cleanup (xfree, addr_string); |
733 | ||
734 | /* NOTE: Parse and evaluate expression, but do not use | |
735 | functions such as parse_and_eval_long or | |
736 | parse_and_eval_address to also extract the value. | |
737 | Instead value_as_long and value_as_address are used. | |
738 | This avoids problems with expressions that contain | |
739 | side-effects. */ | |
740 | if (numargs >= ARRAY_SIZE (args)) | |
8a3fe4f8 | 741 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
742 | args[numargs++] = parse_and_eval (addr_string); |
743 | ||
744 | do_cleanups (cleanup); | |
c906108c SS |
745 | } |
746 | } | |
747 | ||
1c8831c5 AC |
748 | /* If no args, default to the selected frame. */ |
749 | if (numargs == 0) | |
c906108c | 750 | { |
1c8831c5 AC |
751 | if (selected_frame_p != NULL) |
752 | (*selected_frame_p) = 1; | |
753 | return get_selected_frame (message); | |
754 | } | |
c906108c | 755 | |
1c8831c5 AC |
756 | /* None of the remaining use the selected frame. */ |
757 | if (selected_frame_p != NULL) | |
98f276a0 | 758 | (*selected_frame_p) = 0; |
c906108c | 759 | |
1c8831c5 AC |
760 | /* Assume the single arg[0] is an integer, and try using that to |
761 | select a frame relative to current. */ | |
762 | if (numargs == 1) | |
763 | { | |
764 | struct frame_info *fid; | |
765 | int level = value_as_long (args[0]); | |
766 | fid = find_relative_frame (get_current_frame (), &level); | |
767 | if (level == 0) | |
768 | /* find_relative_frame was successful */ | |
769 | return fid; | |
770 | } | |
c906108c | 771 | |
1c8831c5 AC |
772 | /* Convert each value into a corresponding address. */ |
773 | { | |
774 | int i; | |
775 | for (i = 0; i < numargs; i++) | |
776 | addrs[i] = value_as_address (args[0]); | |
777 | } | |
c5aa993b | 778 | |
1c8831c5 AC |
779 | /* Assume that the single arg[0] is an address, use that to identify |
780 | a frame with a matching ID. Should this also accept stack/pc or | |
781 | stack/pc/special. */ | |
782 | if (numargs == 1) | |
783 | { | |
784 | struct frame_id id = frame_id_build_wild (addrs[0]); | |
785 | struct frame_info *fid; | |
786 | ||
1c8831c5 AC |
787 | /* If (s)he specifies the frame with an address, he deserves |
788 | what (s)he gets. Still, give the highest one that matches. | |
789 | (NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't | |
790 | know). */ | |
791 | for (fid = get_current_frame (); | |
792 | fid != NULL; | |
793 | fid = get_prev_frame (fid)) | |
794 | { | |
795 | if (frame_id_eq (id, get_frame_id (fid))) | |
796 | { | |
797 | while (frame_id_eq (id, frame_unwind_id (fid))) | |
798 | fid = get_prev_frame (fid); | |
799 | return fid; | |
800 | } | |
801 | } | |
c906108c SS |
802 | } |
803 | ||
1c8831c5 AC |
804 | /* We couldn't identify the frame as an existing frame, but |
805 | perhaps we can create one with a single argument. */ | |
1c8831c5 AC |
806 | if (numargs == 1) |
807 | return create_new_frame (addrs[0], 0); | |
cd65c8f6 AC |
808 | else if (numargs == 2) |
809 | return create_new_frame (addrs[0], addrs[1]); | |
810 | else | |
8a3fe4f8 | 811 | error (_("Too many args in frame specification")); |
1c8831c5 AC |
812 | } |
813 | ||
9c833c82 | 814 | static struct frame_info * |
1c8831c5 AC |
815 | parse_frame_specification (char *frame_exp) |
816 | { | |
817 | return parse_frame_specification_1 (frame_exp, NULL, NULL); | |
c906108c SS |
818 | } |
819 | ||
033a42c2 MK |
820 | /* Print verbosely the selected frame or the frame at address |
821 | ADDR_EXP. Absolutely all information in the frame is printed. */ | |
c906108c SS |
822 | |
823 | static void | |
fba45db2 | 824 | frame_info (char *addr_exp, int from_tty) |
c906108c SS |
825 | { |
826 | struct frame_info *fi; | |
827 | struct symtab_and_line sal; | |
828 | struct symbol *func; | |
829 | struct symtab *s; | |
830 | struct frame_info *calling_frame_info; | |
831 | int i, count, numregs; | |
832 | char *funname = 0; | |
833 | enum language funlang = language_unknown; | |
82de1e5b | 834 | const char *pc_regname; |
1c8831c5 | 835 | int selected_frame_p; |
c906108c | 836 | |
1c8831c5 | 837 | fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p); |
c906108c | 838 | |
82de1e5b AC |
839 | /* Name of the value returned by get_frame_pc(). Per comments, "pc" |
840 | is not a good name. */ | |
841 | if (PC_REGNUM >= 0) | |
842 | /* OK, this is weird. The PC_REGNUM hardware register's value can | |
843 | easily not match that of the internal value returned by | |
844 | get_frame_pc(). */ | |
845 | pc_regname = REGISTER_NAME (PC_REGNUM); | |
846 | else | |
847 | /* But then, this is weird to. Even without PC_REGNUM, an | |
848 | architectures will often have a hardware register called "pc", | |
849 | and that register's value, again, can easily not match | |
850 | get_frame_pc(). */ | |
851 | pc_regname = "pc"; | |
852 | ||
1058bca7 | 853 | find_frame_sal (fi, &sal); |
c906108c | 854 | func = get_frame_function (fi); |
1058bca7 | 855 | /* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain |
033a42c2 | 856 | the same value? */ |
bdd78e62 | 857 | s = find_pc_symtab (get_frame_pc (fi)); |
c906108c SS |
858 | if (func) |
859 | { | |
033a42c2 MK |
860 | /* It seems appropriate to use SYMBOL_PRINT_NAME() here, to |
861 | display the demangled name that we already have stored in the | |
862 | symbol table, but we stored a version with DMGL_PARAMS turned | |
863 | on, and here we don't want to display parameters. So call the | |
864 | demangler again, with DMGL_ANSI only. | |
865 | ||
866 | Yes, printf_symbol_filtered() will again try to demangle the | |
867 | name on the fly, but the issue is that if cplus_demangle() | |
868 | fails here, it will fail there too. So we want to catch the | |
869 | failure (where DEMANGLED is NULL below) here, while we still | |
870 | have our hands on the function symbol.) */ | |
22abf04a | 871 | funname = DEPRECATED_SYMBOL_NAME (func); |
c5aa993b JM |
872 | funlang = SYMBOL_LANGUAGE (func); |
873 | if (funlang == language_cplus) | |
874 | { | |
033a42c2 MK |
875 | char *demangled = cplus_demangle (funname, DMGL_ANSI); |
876 | /* If the demangler fails, try the demangled name from the | |
877 | symbol table. That'll have parameters, but that's | |
878 | preferable to displaying a mangled name. */ | |
c5aa993b | 879 | if (demangled == NULL) |
de5ad195 | 880 | funname = SYMBOL_PRINT_NAME (func); |
c5aa993b | 881 | } |
c906108c SS |
882 | } |
883 | else | |
884 | { | |
033a42c2 MK |
885 | struct minimal_symbol *msymbol; |
886 | ||
887 | msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c906108c SS |
888 | if (msymbol != NULL) |
889 | { | |
22abf04a | 890 | funname = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
891 | funlang = SYMBOL_LANGUAGE (msymbol); |
892 | } | |
893 | } | |
894 | calling_frame_info = get_prev_frame (fi); | |
895 | ||
1c8831c5 | 896 | if (selected_frame_p && frame_relative_level (fi) >= 0) |
c906108c | 897 | { |
a3f17187 | 898 | printf_filtered (_("Stack level %d, frame at "), |
1c8831c5 | 899 | frame_relative_level (fi)); |
c906108c SS |
900 | } |
901 | else | |
902 | { | |
a3f17187 | 903 | printf_filtered (_("Stack frame at ")); |
c906108c | 904 | } |
9c833c82 FF |
905 | deprecated_print_address_numeric (get_frame_base (fi), 1, gdb_stdout); |
906 | printf_filtered (":\n"); | |
82de1e5b | 907 | printf_filtered (" %s = ", pc_regname); |
66bf4b3a | 908 | deprecated_print_address_numeric (get_frame_pc (fi), 1, gdb_stdout); |
c906108c SS |
909 | |
910 | wrap_here (" "); | |
911 | if (funname) | |
912 | { | |
913 | printf_filtered (" in "); | |
914 | fprintf_symbol_filtered (gdb_stdout, funname, funlang, | |
915 | DMGL_ANSI | DMGL_PARAMS); | |
916 | } | |
917 | wrap_here (" "); | |
918 | if (sal.symtab) | |
919 | printf_filtered (" (%s:%d)", sal.symtab->filename, sal.line); | |
920 | puts_filtered ("; "); | |
921 | wrap_here (" "); | |
82de1e5b | 922 | printf_filtered ("saved %s ", pc_regname); |
66bf4b3a | 923 | deprecated_print_address_numeric (frame_pc_unwind (fi), 1, gdb_stdout); |
c906108c SS |
924 | printf_filtered ("\n"); |
925 | ||
55feb689 DJ |
926 | if (calling_frame_info == NULL) |
927 | { | |
928 | enum unwind_stop_reason reason; | |
929 | ||
930 | reason = get_frame_unwind_stop_reason (fi); | |
931 | if (reason != UNWIND_NO_REASON) | |
932 | printf_filtered (_(" Outermost frame: %s\n"), | |
933 | frame_stop_reason_string (reason)); | |
934 | } | |
935 | ||
c906108c SS |
936 | if (calling_frame_info) |
937 | { | |
938 | printf_filtered (" called by frame at "); | |
66bf4b3a | 939 | deprecated_print_address_numeric (get_frame_base (calling_frame_info), |
8b36eed8 | 940 | 1, gdb_stdout); |
c906108c | 941 | } |
75e3c1f9 | 942 | if (get_next_frame (fi) && calling_frame_info) |
c906108c SS |
943 | puts_filtered (","); |
944 | wrap_here (" "); | |
75e3c1f9 | 945 | if (get_next_frame (fi)) |
c906108c SS |
946 | { |
947 | printf_filtered (" caller of frame at "); | |
66bf4b3a | 948 | deprecated_print_address_numeric (get_frame_base (get_next_frame (fi)), 1, |
8b36eed8 | 949 | gdb_stdout); |
c906108c | 950 | } |
75e3c1f9 | 951 | if (get_next_frame (fi) || calling_frame_info) |
c906108c | 952 | puts_filtered ("\n"); |
55feb689 | 953 | |
c906108c | 954 | if (s) |
1058bca7 AC |
955 | printf_filtered (" source language %s.\n", |
956 | language_str (s->language)); | |
c906108c | 957 | |
c906108c SS |
958 | { |
959 | /* Address of the argument list for this frame, or 0. */ | |
da62e633 | 960 | CORE_ADDR arg_list = get_frame_args_address (fi); |
c906108c SS |
961 | /* Number of args for this frame, or -1 if unknown. */ |
962 | int numargs; | |
963 | ||
964 | if (arg_list == 0) | |
965 | printf_filtered (" Arglist at unknown address.\n"); | |
966 | else | |
967 | { | |
968 | printf_filtered (" Arglist at "); | |
66bf4b3a | 969 | deprecated_print_address_numeric (arg_list, 1, gdb_stdout); |
c906108c SS |
970 | printf_filtered (","); |
971 | ||
983a287a AC |
972 | if (!FRAME_NUM_ARGS_P ()) |
973 | { | |
974 | numargs = -1; | |
975 | puts_filtered (" args: "); | |
976 | } | |
c906108c | 977 | else |
983a287a AC |
978 | { |
979 | numargs = FRAME_NUM_ARGS (fi); | |
980 | gdb_assert (numargs >= 0); | |
981 | if (numargs == 0) | |
982 | puts_filtered (" no args."); | |
983 | else if (numargs == 1) | |
984 | puts_filtered (" 1 arg: "); | |
985 | else | |
986 | printf_filtered (" %d args: ", numargs); | |
987 | } | |
c906108c SS |
988 | print_frame_args (func, fi, numargs, gdb_stdout); |
989 | puts_filtered ("\n"); | |
990 | } | |
991 | } | |
992 | { | |
993 | /* Address of the local variables for this frame, or 0. */ | |
da62e633 | 994 | CORE_ADDR arg_list = get_frame_locals_address (fi); |
c906108c SS |
995 | |
996 | if (arg_list == 0) | |
997 | printf_filtered (" Locals at unknown address,"); | |
998 | else | |
999 | { | |
1000 | printf_filtered (" Locals at "); | |
66bf4b3a | 1001 | deprecated_print_address_numeric (arg_list, 1, gdb_stdout); |
c906108c SS |
1002 | printf_filtered (","); |
1003 | } | |
1004 | } | |
1005 | ||
4f460812 AC |
1006 | /* Print as much information as possible on the location of all the |
1007 | registers. */ | |
1008 | { | |
1009 | enum lval_type lval; | |
1010 | int optimized; | |
1011 | CORE_ADDR addr; | |
1012 | int realnum; | |
1013 | int count; | |
1014 | int i; | |
1015 | int need_nl = 1; | |
1016 | ||
1017 | /* The sp is special; what's displayed isn't the save address, but | |
1018 | the value of the previous frame's sp. This is a legacy thing, | |
1019 | at one stage the frame cached the previous frame's SP instead | |
1020 | of its address, hence it was easiest to just display the cached | |
1021 | value. */ | |
1022 | if (SP_REGNUM >= 0) | |
1023 | { | |
1024 | /* Find out the location of the saved stack pointer with out | |
1025 | actually evaluating it. */ | |
1026 | frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr, | |
1027 | &realnum, NULL); | |
1028 | if (!optimized && lval == not_lval) | |
c906108c | 1029 | { |
10c42a71 | 1030 | gdb_byte value[MAX_REGISTER_SIZE]; |
4f460812 AC |
1031 | CORE_ADDR sp; |
1032 | frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr, | |
1033 | &realnum, value); | |
af1342ab AC |
1034 | /* NOTE: cagney/2003-05-22: This is assuming that the |
1035 | stack pointer was packed as an unsigned integer. That | |
1036 | may or may not be valid. */ | |
3acba339 | 1037 | sp = extract_unsigned_integer (value, register_size (current_gdbarch, SP_REGNUM)); |
4f460812 | 1038 | printf_filtered (" Previous frame's sp is "); |
66bf4b3a | 1039 | deprecated_print_address_numeric (sp, 1, gdb_stdout); |
4f460812 AC |
1040 | printf_filtered ("\n"); |
1041 | need_nl = 0; | |
c906108c | 1042 | } |
4f460812 AC |
1043 | else if (!optimized && lval == lval_memory) |
1044 | { | |
1045 | printf_filtered (" Previous frame's sp at "); | |
66bf4b3a | 1046 | deprecated_print_address_numeric (addr, 1, gdb_stdout); |
4f460812 AC |
1047 | printf_filtered ("\n"); |
1048 | need_nl = 0; | |
1049 | } | |
1050 | else if (!optimized && lval == lval_register) | |
1051 | { | |
1052 | printf_filtered (" Previous frame's sp in %s\n", | |
1053 | REGISTER_NAME (realnum)); | |
1054 | need_nl = 0; | |
1055 | } | |
1056 | /* else keep quiet. */ | |
1057 | } | |
1058 | ||
1059 | count = 0; | |
1060 | numregs = NUM_REGS + NUM_PSEUDO_REGS; | |
1061 | for (i = 0; i < numregs; i++) | |
898c62f5 DJ |
1062 | if (i != SP_REGNUM |
1063 | && gdbarch_register_reggroup_p (current_gdbarch, i, all_reggroup)) | |
4f460812 AC |
1064 | { |
1065 | /* Find out the location of the saved register without | |
1066 | fetching the corresponding value. */ | |
1067 | frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum, | |
1068 | NULL); | |
1069 | /* For moment, only display registers that were saved on the | |
1070 | stack. */ | |
1071 | if (!optimized && lval == lval_memory) | |
1072 | { | |
1073 | if (count == 0) | |
1074 | puts_filtered (" Saved registers:\n "); | |
1075 | else | |
1076 | puts_filtered (","); | |
1077 | wrap_here (" "); | |
1078 | printf_filtered (" %s at ", REGISTER_NAME (i)); | |
66bf4b3a | 1079 | deprecated_print_address_numeric (addr, 1, gdb_stdout); |
4f460812 AC |
1080 | count++; |
1081 | } | |
1082 | } | |
1083 | if (count || need_nl) | |
c906108c | 1084 | puts_filtered ("\n"); |
4f460812 | 1085 | } |
c906108c SS |
1086 | } |
1087 | ||
033a42c2 MK |
1088 | /* Print briefly all stack frames or just the innermost COUNT_EXP |
1089 | frames. */ | |
c906108c SS |
1090 | |
1091 | static void | |
fba45db2 | 1092 | backtrace_command_1 (char *count_exp, int show_locals, int from_tty) |
c906108c SS |
1093 | { |
1094 | struct frame_info *fi; | |
52f0bd74 AC |
1095 | int count; |
1096 | int i; | |
1097 | struct frame_info *trailing; | |
1098 | int trailing_level; | |
c906108c SS |
1099 | |
1100 | if (!target_has_stack) | |
8a3fe4f8 | 1101 | error (_("No stack.")); |
c906108c | 1102 | |
033a42c2 MK |
1103 | /* The following code must do two things. First, it must set the |
1104 | variable TRAILING to the frame from which we should start | |
c906108c SS |
1105 | printing. Second, it must set the variable count to the number |
1106 | of frames which we should print, or -1 if all of them. */ | |
1107 | trailing = get_current_frame (); | |
d082b2bb AC |
1108 | |
1109 | /* The target can be in a state where there is no valid frames | |
1110 | (e.g., just connected). */ | |
1111 | if (trailing == NULL) | |
8a3fe4f8 | 1112 | error (_("No stack.")); |
d082b2bb | 1113 | |
c906108c SS |
1114 | trailing_level = 0; |
1115 | if (count_exp) | |
1116 | { | |
bb518678 | 1117 | count = parse_and_eval_long (count_exp); |
c906108c SS |
1118 | if (count < 0) |
1119 | { | |
1120 | struct frame_info *current; | |
1121 | ||
1122 | count = -count; | |
1123 | ||
1124 | current = trailing; | |
1125 | while (current && count--) | |
1126 | { | |
1127 | QUIT; | |
1128 | current = get_prev_frame (current); | |
1129 | } | |
c5aa993b | 1130 | |
033a42c2 MK |
1131 | /* Will stop when CURRENT reaches the top of the stack. |
1132 | TRAILING will be COUNT below it. */ | |
c906108c SS |
1133 | while (current) |
1134 | { | |
1135 | QUIT; | |
1136 | trailing = get_prev_frame (trailing); | |
1137 | current = get_prev_frame (current); | |
1138 | trailing_level++; | |
1139 | } | |
c5aa993b | 1140 | |
c906108c SS |
1141 | count = -1; |
1142 | } | |
1143 | } | |
1144 | else | |
1145 | count = -1; | |
1146 | ||
1147 | if (info_verbose) | |
1148 | { | |
1149 | struct partial_symtab *ps; | |
c5aa993b | 1150 | |
033a42c2 MK |
1151 | /* Read in symbols for all of the frames. Need to do this in a |
1152 | separate pass so that "Reading in symbols for xxx" messages | |
1153 | don't screw up the appearance of the backtrace. Also if | |
1154 | people have strong opinions against reading symbols for | |
c5aa993b | 1155 | backtrace this may have to be an option. */ |
c906108c | 1156 | i = count; |
033a42c2 | 1157 | for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi)) |
c906108c SS |
1158 | { |
1159 | QUIT; | |
c4a09524 | 1160 | ps = find_pc_psymtab (get_frame_address_in_block (fi)); |
c906108c | 1161 | if (ps) |
033a42c2 | 1162 | PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */ |
c906108c SS |
1163 | } |
1164 | } | |
1165 | ||
033a42c2 | 1166 | for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi)) |
c906108c SS |
1167 | { |
1168 | QUIT; | |
1169 | ||
1170 | /* Don't use print_stack_frame; if an error() occurs it probably | |
c5aa993b JM |
1171 | means further attempts to backtrace would fail (on the other |
1172 | hand, perhaps the code does or could be fixed to make sure | |
1173 | the frame->prev field gets set to NULL in that case). */ | |
0faf0076 | 1174 | print_frame_info (fi, 1, LOCATION, 1); |
c906108c | 1175 | if (show_locals) |
c5aa993b | 1176 | print_frame_local_vars (fi, 1, gdb_stdout); |
55feb689 DJ |
1177 | |
1178 | /* Save the last frame to check for error conditions. */ | |
1179 | trailing = fi; | |
c906108c SS |
1180 | } |
1181 | ||
1182 | /* If we've stopped before the end, mention that. */ | |
1183 | if (fi && from_tty) | |
a3f17187 | 1184 | printf_filtered (_("(More stack frames follow...)\n")); |
55feb689 DJ |
1185 | |
1186 | /* If we've run out of frames, and the reason appears to be an error | |
1187 | condition, print it. */ | |
1188 | if (fi == NULL && trailing != NULL) | |
1189 | { | |
1190 | enum unwind_stop_reason reason; | |
1191 | ||
1192 | reason = get_frame_unwind_stop_reason (trailing); | |
1193 | if (reason > UNWIND_FIRST_ERROR) | |
1194 | printf_filtered (_("Backtrace stopped: %s\n"), | |
1195 | frame_stop_reason_string (reason)); | |
1196 | } | |
c906108c SS |
1197 | } |
1198 | ||
d75e3c94 | 1199 | struct backtrace_command_args |
033a42c2 MK |
1200 | { |
1201 | char *count_exp; | |
1202 | int show_locals; | |
1203 | int from_tty; | |
1204 | }; | |
1205 | ||
1206 | /* Stub for catch_errors. */ | |
d75e3c94 | 1207 | |
d75e3c94 JJ |
1208 | static int |
1209 | backtrace_command_stub (void *data) | |
1210 | { | |
033a42c2 | 1211 | struct backtrace_command_args *args = data; |
d75e3c94 JJ |
1212 | backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty); |
1213 | return 0; | |
1214 | } | |
1215 | ||
c906108c | 1216 | static void |
fba45db2 | 1217 | backtrace_command (char *arg, int from_tty) |
c906108c | 1218 | { |
033a42c2 MK |
1219 | struct cleanup *old_chain = NULL; |
1220 | int fulltrace_arg = -1, arglen = 0, argc = 0; | |
d75e3c94 | 1221 | struct backtrace_command_args btargs; |
c906108c | 1222 | |
033a42c2 | 1223 | if (arg) |
c906108c | 1224 | { |
033a42c2 | 1225 | char **argv; |
c906108c SS |
1226 | int i; |
1227 | ||
c5aa993b | 1228 | argv = buildargv (arg); |
7a292a7a | 1229 | old_chain = make_cleanup_freeargv (argv); |
c906108c | 1230 | argc = 0; |
033a42c2 | 1231 | for (i = 0; argv[i]; i++) |
c5aa993b | 1232 | { |
745b8ca0 | 1233 | unsigned int j; |
c5aa993b | 1234 | |
033a42c2 | 1235 | for (j = 0; j < strlen (argv[i]); j++) |
c5aa993b JM |
1236 | argv[i][j] = tolower (argv[i][j]); |
1237 | ||
033a42c2 MK |
1238 | if (fulltrace_arg < 0 && subset_compare (argv[i], "full")) |
1239 | fulltrace_arg = argc; | |
c5aa993b JM |
1240 | else |
1241 | { | |
033a42c2 | 1242 | arglen += strlen (argv[i]); |
c5aa993b | 1243 | argc++; |
c5aa993b JM |
1244 | } |
1245 | } | |
033a42c2 MK |
1246 | arglen += argc; |
1247 | if (fulltrace_arg >= 0) | |
c5aa993b | 1248 | { |
033a42c2 | 1249 | if (arglen > 0) |
c5aa993b | 1250 | { |
033a42c2 MK |
1251 | arg = xmalloc (arglen + 1); |
1252 | memset (arg, 0, arglen + 1); | |
1253 | for (i = 0; i < (argc + 1); i++) | |
c5aa993b | 1254 | { |
033a42c2 | 1255 | if (i != fulltrace_arg) |
c5aa993b | 1256 | { |
033a42c2 MK |
1257 | strcat (arg, argv[i]); |
1258 | strcat (arg, " "); | |
c5aa993b JM |
1259 | } |
1260 | } | |
1261 | } | |
1262 | else | |
033a42c2 | 1263 | arg = NULL; |
c5aa993b | 1264 | } |
c906108c SS |
1265 | } |
1266 | ||
033a42c2 MK |
1267 | btargs.count_exp = arg; |
1268 | btargs.show_locals = (fulltrace_arg >= 0); | |
d75e3c94 | 1269 | btargs.from_tty = from_tty; |
033a42c2 | 1270 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1271 | |
033a42c2 MK |
1272 | if (fulltrace_arg >= 0 && arglen > 0) |
1273 | xfree (arg); | |
c906108c SS |
1274 | |
1275 | if (old_chain) | |
c5aa993b | 1276 | do_cleanups (old_chain); |
c906108c SS |
1277 | } |
1278 | ||
1279 | static void | |
fba45db2 | 1280 | backtrace_full_command (char *arg, int from_tty) |
c906108c | 1281 | { |
d75e3c94 JJ |
1282 | struct backtrace_command_args btargs; |
1283 | btargs.count_exp = arg; | |
1284 | btargs.show_locals = 1; | |
1285 | btargs.from_tty = from_tty; | |
033a42c2 | 1286 | catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR); |
c906108c | 1287 | } |
c906108c | 1288 | \f |
c5aa993b | 1289 | |
033a42c2 | 1290 | /* Print the local variables of a block B active in FRAME on STREAM. |
c906108c SS |
1291 | Return 1 if any variables were printed; 0 otherwise. */ |
1292 | ||
1293 | static int | |
033a42c2 | 1294 | print_block_frame_locals (struct block *b, struct frame_info *frame, |
de4f826b | 1295 | int num_tabs, struct ui_file *stream) |
c906108c | 1296 | { |
de4f826b | 1297 | struct dict_iterator iter; |
de4f826b DC |
1298 | struct symbol *sym; |
1299 | int values_printed = 0; | |
033a42c2 | 1300 | int j; |
c906108c | 1301 | |
de4f826b | 1302 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1303 | { |
c906108c SS |
1304 | switch (SYMBOL_CLASS (sym)) |
1305 | { | |
1306 | case LOC_LOCAL: | |
1307 | case LOC_REGISTER: | |
1308 | case LOC_STATIC: | |
1309 | case LOC_BASEREG: | |
4c2df51b | 1310 | case LOC_COMPUTED: |
c906108c SS |
1311 | values_printed = 1; |
1312 | for (j = 0; j < num_tabs; j++) | |
c5aa993b | 1313 | fputs_filtered ("\t", stream); |
de5ad195 | 1314 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c | 1315 | fputs_filtered (" = ", stream); |
033a42c2 | 1316 | print_variable_value (sym, frame, stream); |
c906108c SS |
1317 | fprintf_filtered (stream, "\n"); |
1318 | break; | |
1319 | ||
1320 | default: | |
1321 | /* Ignore symbols which are not locals. */ | |
1322 | break; | |
1323 | } | |
1324 | } | |
033a42c2 | 1325 | |
c906108c SS |
1326 | return values_printed; |
1327 | } | |
1328 | ||
1329 | /* Same, but print labels. */ | |
1330 | ||
1331 | static int | |
fba45db2 | 1332 | print_block_frame_labels (struct block *b, int *have_default, |
aa1ee363 | 1333 | struct ui_file *stream) |
c906108c | 1334 | { |
de4f826b | 1335 | struct dict_iterator iter; |
52f0bd74 AC |
1336 | struct symbol *sym; |
1337 | int values_printed = 0; | |
c906108c | 1338 | |
de4f826b | 1339 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1340 | { |
acd8056e | 1341 | if (strcmp (DEPRECATED_SYMBOL_NAME (sym), "default") == 0) |
c906108c SS |
1342 | { |
1343 | if (*have_default) | |
1344 | continue; | |
1345 | *have_default = 1; | |
1346 | } | |
1347 | if (SYMBOL_CLASS (sym) == LOC_LABEL) | |
1348 | { | |
1349 | struct symtab_and_line sal; | |
1350 | sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0); | |
1351 | values_printed = 1; | |
de5ad195 | 1352 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1353 | if (addressprint) |
1354 | { | |
1355 | fprintf_filtered (stream, " "); | |
66bf4b3a | 1356 | deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, stream); |
c906108c SS |
1357 | } |
1358 | fprintf_filtered (stream, " in file %s, line %d\n", | |
1359 | sal.symtab->filename, sal.line); | |
1360 | } | |
1361 | } | |
033a42c2 | 1362 | |
c906108c SS |
1363 | return values_printed; |
1364 | } | |
1365 | ||
033a42c2 MK |
1366 | /* Print on STREAM all the local variables in frame FRAME, including |
1367 | all the blocks active in that frame at its current PC. | |
c906108c | 1368 | |
033a42c2 MK |
1369 | Returns 1 if the job was done, or 0 if nothing was printed because |
1370 | we have no info on the function running in FRAME. */ | |
c906108c SS |
1371 | |
1372 | static void | |
033a42c2 | 1373 | print_frame_local_vars (struct frame_info *frame, int num_tabs, |
aa1ee363 | 1374 | struct ui_file *stream) |
c906108c | 1375 | { |
033a42c2 | 1376 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1377 | int values_printed = 0; |
c906108c SS |
1378 | |
1379 | if (block == 0) | |
1380 | { | |
1381 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1382 | return; | |
1383 | } | |
c5aa993b | 1384 | |
033a42c2 | 1385 | while (block) |
c906108c | 1386 | { |
033a42c2 | 1387 | if (print_block_frame_locals (block, frame, num_tabs, stream)) |
c906108c | 1388 | values_printed = 1; |
033a42c2 MK |
1389 | /* After handling the function's top-level block, stop. Don't |
1390 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1391 | if (BLOCK_FUNCTION (block)) |
1392 | break; | |
1393 | block = BLOCK_SUPERBLOCK (block); | |
1394 | } | |
1395 | ||
1396 | if (!values_printed) | |
033a42c2 | 1397 | fprintf_filtered (stream, _("No locals.\n")); |
c906108c SS |
1398 | } |
1399 | ||
1400 | /* Same, but print labels. */ | |
1401 | ||
1402 | static void | |
033a42c2 | 1403 | print_frame_label_vars (struct frame_info *frame, int this_level_only, |
aa1ee363 | 1404 | struct ui_file *stream) |
c906108c | 1405 | { |
52f0bd74 | 1406 | struct blockvector *bl; |
033a42c2 | 1407 | struct block *block = get_frame_block (frame, 0); |
52f0bd74 | 1408 | int values_printed = 0; |
c906108c SS |
1409 | int index, have_default = 0; |
1410 | char *blocks_printed; | |
033a42c2 | 1411 | CORE_ADDR pc = get_frame_pc (frame); |
c906108c SS |
1412 | |
1413 | if (block == 0) | |
1414 | { | |
1415 | fprintf_filtered (stream, "No symbol table info available.\n"); | |
1416 | return; | |
1417 | } | |
1418 | ||
1419 | bl = blockvector_for_pc (BLOCK_END (block) - 4, &index); | |
033a42c2 | 1420 | blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
c906108c SS |
1421 | memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char)); |
1422 | ||
1423 | while (block != 0) | |
1424 | { | |
1425 | CORE_ADDR end = BLOCK_END (block) - 4; | |
1426 | int last_index; | |
1427 | ||
1428 | if (bl != blockvector_for_pc (end, &index)) | |
8a3fe4f8 | 1429 | error (_("blockvector blotch")); |
c906108c | 1430 | if (BLOCKVECTOR_BLOCK (bl, index) != block) |
8a3fe4f8 | 1431 | error (_("blockvector botch")); |
c906108c SS |
1432 | last_index = BLOCKVECTOR_NBLOCKS (bl); |
1433 | index += 1; | |
1434 | ||
1435 | /* Don't print out blocks that have gone by. */ | |
1436 | while (index < last_index | |
1437 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc) | |
1438 | index++; | |
1439 | ||
1440 | while (index < last_index | |
1441 | && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end) | |
1442 | { | |
1443 | if (blocks_printed[index] == 0) | |
1444 | { | |
033a42c2 MK |
1445 | if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), |
1446 | &have_default, stream)) | |
c906108c SS |
1447 | values_printed = 1; |
1448 | blocks_printed[index] = 1; | |
1449 | } | |
1450 | index++; | |
1451 | } | |
1452 | if (have_default) | |
1453 | return; | |
1454 | if (values_printed && this_level_only) | |
1455 | return; | |
1456 | ||
033a42c2 MK |
1457 | /* After handling the function's top-level block, stop. Don't |
1458 | continue to its superblock, the block of per-file symbols. */ | |
c906108c SS |
1459 | if (BLOCK_FUNCTION (block)) |
1460 | break; | |
1461 | block = BLOCK_SUPERBLOCK (block); | |
1462 | } | |
1463 | ||
1464 | if (!values_printed && !this_level_only) | |
033a42c2 | 1465 | fprintf_filtered (stream, _("No catches.\n")); |
c906108c SS |
1466 | } |
1467 | ||
c906108c | 1468 | void |
fba45db2 | 1469 | locals_info (char *args, int from_tty) |
c906108c | 1470 | { |
033a42c2 | 1471 | print_frame_local_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1472 | 0, gdb_stdout); |
c906108c SS |
1473 | } |
1474 | ||
1475 | static void | |
fba45db2 | 1476 | catch_info (char *ignore, int from_tty) |
c906108c | 1477 | { |
c5aa993b | 1478 | struct symtab_and_line *sal; |
c906108c | 1479 | |
c5aa993b | 1480 | /* Check for target support for exception handling */ |
c906108c SS |
1481 | sal = target_enable_exception_callback (EX_EVENT_CATCH, 1); |
1482 | if (sal) | |
1483 | { | |
033a42c2 MK |
1484 | /* Currently not handling this. Ideally, here we should |
1485 | interact with the C++ runtime system to find the list of | |
1486 | active handlers, etc. */ | |
1487 | fprintf_filtered (gdb_stdout, _("\ | |
1488 | Info catch not supported with this target/compiler combination.\n")); | |
c906108c SS |
1489 | } |
1490 | else | |
1491 | { | |
033a42c2 MK |
1492 | /* Assume g++ compiled code; old GDB 4.16 behaviour. */ |
1493 | print_frame_label_vars (get_selected_frame (_("No frame selected.")), | |
b04f3ab4 | 1494 | 0, gdb_stdout); |
c906108c SS |
1495 | } |
1496 | } | |
1497 | ||
1498 | static void | |
033a42c2 | 1499 | print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream) |
c906108c | 1500 | { |
033a42c2 | 1501 | struct symbol *func = get_frame_function (frame); |
52f0bd74 | 1502 | struct block *b; |
de4f826b | 1503 | struct dict_iterator iter; |
52f0bd74 AC |
1504 | struct symbol *sym, *sym2; |
1505 | int values_printed = 0; | |
c906108c SS |
1506 | |
1507 | if (func == 0) | |
1508 | { | |
033a42c2 | 1509 | fprintf_filtered (stream, _("No symbol table info available.\n")); |
c906108c SS |
1510 | return; |
1511 | } | |
1512 | ||
1513 | b = SYMBOL_BLOCK_VALUE (func); | |
de4f826b | 1514 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c906108c | 1515 | { |
c906108c SS |
1516 | switch (SYMBOL_CLASS (sym)) |
1517 | { | |
1518 | case LOC_ARG: | |
1519 | case LOC_LOCAL_ARG: | |
1520 | case LOC_REF_ARG: | |
1521 | case LOC_REGPARM: | |
1522 | case LOC_REGPARM_ADDR: | |
1523 | case LOC_BASEREG_ARG: | |
4c2df51b | 1524 | case LOC_COMPUTED_ARG: |
c906108c | 1525 | values_printed = 1; |
de5ad195 | 1526 | fputs_filtered (SYMBOL_PRINT_NAME (sym), stream); |
c906108c SS |
1527 | fputs_filtered (" = ", stream); |
1528 | ||
1529 | /* We have to look up the symbol because arguments can have | |
1530 | two entries (one a parameter, one a local) and the one we | |
1531 | want is the local, which lookup_symbol will find for us. | |
1532 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1533 | small structure and gcc2 when the argument type is float | |
1534 | and it is passed as a double and converted to float by | |
1535 | the prologue (in the latter case the type of the LOC_ARG | |
1536 | symbol is double and the type of the LOC_LOCAL symbol is | |
1537 | float). There are also LOC_ARG/LOC_REGISTER pairs which | |
1538 | are not combined in symbol-reading. */ | |
1539 | ||
22abf04a | 1540 | sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym), |
033a42c2 MK |
1541 | b, VAR_DOMAIN, NULL, NULL); |
1542 | print_variable_value (sym2, frame, stream); | |
c906108c SS |
1543 | fprintf_filtered (stream, "\n"); |
1544 | break; | |
1545 | ||
1546 | default: | |
1547 | /* Don't worry about things which aren't arguments. */ | |
1548 | break; | |
1549 | } | |
1550 | } | |
033a42c2 | 1551 | |
c906108c | 1552 | if (!values_printed) |
033a42c2 | 1553 | fprintf_filtered (stream, _("No arguments.\n")); |
c906108c SS |
1554 | } |
1555 | ||
1556 | void | |
fba45db2 | 1557 | args_info (char *ignore, int from_tty) |
c906108c | 1558 | { |
033a42c2 | 1559 | print_frame_arg_vars (get_selected_frame (_("No frame selected.")), |
b04f3ab4 | 1560 | gdb_stdout); |
c906108c SS |
1561 | } |
1562 | ||
1563 | ||
1564 | static void | |
fba45db2 | 1565 | args_plus_locals_info (char *ignore, int from_tty) |
c906108c | 1566 | { |
c5aa993b JM |
1567 | args_info (ignore, from_tty); |
1568 | locals_info (ignore, from_tty); | |
c906108c | 1569 | } |
c906108c | 1570 | \f |
c5aa993b | 1571 | |
033a42c2 MK |
1572 | /* Select frame FRAME. Also print the stack frame and show the source |
1573 | if this is the tui version. */ | |
bedfa57b | 1574 | static void |
033a42c2 | 1575 | select_and_print_frame (struct frame_info *frame) |
c906108c | 1576 | { |
033a42c2 MK |
1577 | select_frame (frame); |
1578 | if (frame) | |
1579 | print_stack_frame (frame, 1, SRC_AND_LOC); | |
c906108c | 1580 | } |
c906108c | 1581 | \f |
c906108c | 1582 | /* Return the symbol-block in which the selected frame is executing. |
ae767bfb JB |
1583 | Can return zero under various legitimate circumstances. |
1584 | ||
1585 | If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant | |
1586 | code address within the block returned. We use this to decide | |
1587 | which macros are in scope. */ | |
c906108c SS |
1588 | |
1589 | struct block * | |
ae767bfb | 1590 | get_selected_block (CORE_ADDR *addr_in_block) |
c906108c SS |
1591 | { |
1592 | if (!target_has_stack) | |
1593 | return 0; | |
1594 | ||
8c69fc49 | 1595 | /* NOTE: cagney/2002-11-28: Why go to all this effort to not create |
b2fa5097 | 1596 | a selected/current frame? Perhaps this function is called, |
8c69fc49 AC |
1597 | indirectly, by WFI in "infrun.c" where avoiding the creation of |
1598 | an inner most frame is very important (it slows down single | |
1599 | step). I suspect, though that this was true in the deep dark | |
1600 | past but is no longer the case. A mindless look at all the | |
1601 | callers tends to support this theory. I think we should be able | |
1602 | to assume that there is always a selcted frame. */ | |
6e7f8b9c AC |
1603 | /* gdb_assert (deprecated_selected_frame != NULL); So, do you feel |
1604 | lucky? */ | |
1605 | if (!deprecated_selected_frame) | |
8c69fc49 AC |
1606 | { |
1607 | CORE_ADDR pc = read_pc (); | |
1608 | if (addr_in_block != NULL) | |
1609 | *addr_in_block = pc; | |
1610 | return block_for_pc (pc); | |
1611 | } | |
6e7f8b9c | 1612 | return get_frame_block (deprecated_selected_frame, addr_in_block); |
c906108c SS |
1613 | } |
1614 | ||
1615 | /* Find a frame a certain number of levels away from FRAME. | |
1616 | LEVEL_OFFSET_PTR points to an int containing the number of levels. | |
1617 | Positive means go to earlier frames (up); negative, the reverse. | |
1618 | The int that contains the number of levels is counted toward | |
1619 | zero as the frames for those levels are found. | |
1620 | If the top or bottom frame is reached, that frame is returned, | |
1621 | but the final value of *LEVEL_OFFSET_PTR is nonzero and indicates | |
1622 | how much farther the original request asked to go. */ | |
1623 | ||
1624 | struct frame_info * | |
033a42c2 | 1625 | find_relative_frame (struct frame_info *frame, int *level_offset_ptr) |
c906108c | 1626 | { |
033a42c2 MK |
1627 | /* Going up is simple: just call get_prev_frame enough times or |
1628 | until the initial frame is reached. */ | |
c906108c SS |
1629 | while (*level_offset_ptr > 0) |
1630 | { | |
033a42c2 MK |
1631 | struct frame_info *prev = get_prev_frame (frame); |
1632 | if (!prev) | |
c906108c SS |
1633 | break; |
1634 | (*level_offset_ptr)--; | |
1635 | frame = prev; | |
1636 | } | |
033a42c2 | 1637 | |
c906108c | 1638 | /* Going down is just as simple. */ |
033a42c2 | 1639 | while (*level_offset_ptr < 0) |
c906108c | 1640 | { |
033a42c2 MK |
1641 | struct frame_info *next = get_next_frame (frame); |
1642 | if (!next) | |
1643 | break; | |
1644 | (*level_offset_ptr)++; | |
1645 | frame = next; | |
c906108c | 1646 | } |
033a42c2 | 1647 | |
c906108c SS |
1648 | return frame; |
1649 | } | |
1650 | ||
033a42c2 MK |
1651 | /* The "select_frame" command. With no argument this is a NOP. |
1652 | Select the frame at level LEVEL_EXP if it is a valid level. | |
1653 | Otherwise, treat LEVEL_EXP as an address expression and select it. | |
1654 | ||
1655 | See parse_frame_specification for more info on proper frame | |
1656 | expressions. */ | |
c906108c | 1657 | |
8b93c638 | 1658 | void |
fba45db2 | 1659 | select_frame_command (char *level_exp, int from_tty) |
c906108c | 1660 | { |
1c8831c5 | 1661 | select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL)); |
c906108c SS |
1662 | } |
1663 | ||
033a42c2 MK |
1664 | /* The "frame" command. With no argument, print the selected frame |
1665 | briefly. With an argument, behave like select_frame and then print | |
1666 | the selected frame. */ | |
c906108c | 1667 | |
033a42c2 | 1668 | static void |
fba45db2 | 1669 | frame_command (char *level_exp, int from_tty) |
c906108c SS |
1670 | { |
1671 | select_frame_command (level_exp, from_tty); | |
b04f3ab4 | 1672 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1673 | } |
1674 | ||
033a42c2 | 1675 | /* The XDB Compatibility command to print the current frame. */ |
c906108c | 1676 | |
7a292a7a | 1677 | static void |
fba45db2 | 1678 | current_frame_command (char *level_exp, int from_tty) |
c906108c | 1679 | { |
033a42c2 | 1680 | print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC); |
7a292a7a | 1681 | } |
c906108c | 1682 | |
033a42c2 MK |
1683 | /* Select the frame up one or COUNT_EXP stack levels from the |
1684 | previously selected frame, and print it briefly. */ | |
c906108c | 1685 | |
c906108c | 1686 | static void |
fba45db2 | 1687 | up_silently_base (char *count_exp) |
c906108c | 1688 | { |
033a42c2 MK |
1689 | struct frame_info *frame; |
1690 | int count = 1; | |
1691 | ||
c906108c | 1692 | if (count_exp) |
bb518678 | 1693 | count = parse_and_eval_long (count_exp); |
c5aa993b | 1694 | |
033a42c2 MK |
1695 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1696 | if (count != 0 && count_exp == NULL) | |
8a3fe4f8 | 1697 | error (_("Initial frame selected; you cannot go up.")); |
033a42c2 | 1698 | select_frame (frame); |
c906108c SS |
1699 | } |
1700 | ||
1701 | static void | |
fba45db2 | 1702 | up_silently_command (char *count_exp, int from_tty) |
c906108c | 1703 | { |
c5aa993b | 1704 | up_silently_base (count_exp); |
c906108c SS |
1705 | } |
1706 | ||
1707 | static void | |
fba45db2 | 1708 | up_command (char *count_exp, int from_tty) |
c906108c SS |
1709 | { |
1710 | up_silently_base (count_exp); | |
b04f3ab4 | 1711 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1712 | } |
1713 | ||
033a42c2 MK |
1714 | /* Select the frame down one or COUNT_EXP stack levels from the previously |
1715 | selected frame, and print it briefly. */ | |
c906108c | 1716 | |
c906108c | 1717 | static void |
fba45db2 | 1718 | down_silently_base (char *count_exp) |
c906108c | 1719 | { |
52f0bd74 | 1720 | struct frame_info *frame; |
033a42c2 | 1721 | int count = -1; |
c906108c | 1722 | if (count_exp) |
bb518678 | 1723 | count = -parse_and_eval_long (count_exp); |
c5aa993b | 1724 | |
033a42c2 MK |
1725 | frame = find_relative_frame (get_selected_frame ("No stack."), &count); |
1726 | if (count != 0 && count_exp == NULL) | |
c906108c | 1727 | { |
033a42c2 MK |
1728 | /* We only do this if COUNT_EXP is not specified. That way |
1729 | "down" means to really go down (and let me know if that is | |
1730 | impossible), but "down 9999" can be used to mean go all the | |
1731 | way down without getting an error. */ | |
c906108c | 1732 | |
033a42c2 | 1733 | error (_("Bottom (innermost) frame selected; you cannot go down.")); |
c906108c SS |
1734 | } |
1735 | ||
0f7d239c | 1736 | select_frame (frame); |
c906108c SS |
1737 | } |
1738 | ||
c906108c | 1739 | static void |
fba45db2 | 1740 | down_silently_command (char *count_exp, int from_tty) |
c906108c SS |
1741 | { |
1742 | down_silently_base (count_exp); | |
c906108c SS |
1743 | } |
1744 | ||
1745 | static void | |
fba45db2 | 1746 | down_command (char *count_exp, int from_tty) |
c906108c SS |
1747 | { |
1748 | down_silently_base (count_exp); | |
b04f3ab4 | 1749 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
c906108c SS |
1750 | } |
1751 | \f | |
033a42c2 | 1752 | |
8b93c638 | 1753 | void |
fba45db2 | 1754 | return_command (char *retval_exp, int from_tty) |
c906108c SS |
1755 | { |
1756 | struct symbol *thisfun; | |
3d6d86c6 | 1757 | struct value *return_value = NULL; |
fc70c2a0 | 1758 | const char *query_prefix = ""; |
c906108c | 1759 | |
b04f3ab4 | 1760 | thisfun = get_frame_function (get_selected_frame ("No selected frame.")); |
c906108c | 1761 | |
fc70c2a0 AC |
1762 | /* Compute the return value. If the computation triggers an error, |
1763 | let it bail. If the return type can't be handled, set | |
1764 | RETURN_VALUE to NULL, and QUERY_PREFIX to an informational | |
1765 | message. */ | |
c906108c SS |
1766 | if (retval_exp) |
1767 | { | |
1768 | struct type *return_type = NULL; | |
1769 | ||
fc70c2a0 AC |
1770 | /* Compute the return value. Should the computation fail, this |
1771 | call throws an error. */ | |
c906108c SS |
1772 | return_value = parse_and_eval (retval_exp); |
1773 | ||
fc70c2a0 AC |
1774 | /* Cast return value to the return type of the function. Should |
1775 | the cast fail, this call throws an error. */ | |
c906108c SS |
1776 | if (thisfun != NULL) |
1777 | return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun)); | |
1778 | if (return_type == NULL) | |
1779 | return_type = builtin_type_int; | |
3e9a183c | 1780 | CHECK_TYPEDEF (return_type); |
c906108c SS |
1781 | return_value = value_cast (return_type, return_value); |
1782 | ||
fc70c2a0 AC |
1783 | /* Make sure the value is fully evaluated. It may live in the |
1784 | stack frame we're about to pop. */ | |
d69fe07e | 1785 | if (value_lazy (return_value)) |
c906108c | 1786 | value_fetch_lazy (return_value); |
c906108c | 1787 | |
667e784f AC |
1788 | if (TYPE_CODE (return_type) == TYPE_CODE_VOID) |
1789 | /* If the return-type is "void", don't try to find the | |
1790 | return-value's location. However, do still evaluate the | |
1791 | return expression so that, even when the expression result | |
1792 | is discarded, side effects such as "return i++" still | |
033a42c2 | 1793 | occur. */ |
667e784f | 1794 | return_value = NULL; |
74055713 AC |
1795 | /* FIXME: cagney/2004-01-17: If the architecture implements both |
1796 | return_value and extract_returned_value_address, should allow | |
1797 | "return" to work - don't set return_value to NULL. */ | |
667e784f AC |
1798 | else if (!gdbarch_return_value_p (current_gdbarch) |
1799 | && (TYPE_CODE (return_type) == TYPE_CODE_STRUCT | |
1800 | || TYPE_CODE (return_type) == TYPE_CODE_UNION)) | |
c906108c | 1801 | { |
667e784f AC |
1802 | /* NOTE: cagney/2003-10-20: Compatibility hack for legacy |
1803 | code. Old architectures don't expect STORE_RETURN_VALUE | |
1804 | to be called with with a small struct that needs to be | |
1805 | stored in registers. Don't start doing it now. */ | |
1806 | query_prefix = "\ | |
1807 | A structure or union return type is not supported by this architecture.\n\ | |
1808 | If you continue, the return value that you specified will be ignored.\n"; | |
1809 | return_value = NULL; | |
c906108c | 1810 | } |
667e784f | 1811 | else if (using_struct_return (return_type, 0)) |
fc70c2a0 | 1812 | { |
667e784f AC |
1813 | query_prefix = "\ |
1814 | The location at which to store the function's return value is unknown.\n\ | |
1815 | If you continue, the return value that you specified will be ignored.\n"; | |
1816 | return_value = NULL; | |
fc70c2a0 | 1817 | } |
c906108c SS |
1818 | } |
1819 | ||
fc70c2a0 AC |
1820 | /* Does an interactive user really want to do this? Include |
1821 | information, such as how well GDB can handle the return value, in | |
1822 | the query message. */ | |
1823 | if (from_tty) | |
1824 | { | |
1825 | int confirmed; | |
1826 | if (thisfun == NULL) | |
e2e0b3e5 | 1827 | confirmed = query (_("%sMake selected stack frame return now? "), |
fc70c2a0 AC |
1828 | query_prefix); |
1829 | else | |
e2e0b3e5 | 1830 | confirmed = query (_("%sMake %s return now? "), query_prefix, |
fc70c2a0 AC |
1831 | SYMBOL_PRINT_NAME (thisfun)); |
1832 | if (!confirmed) | |
8a3fe4f8 | 1833 | error (_("Not confirmed")); |
fc70c2a0 | 1834 | } |
c906108c | 1835 | |
fc70c2a0 AC |
1836 | /* NOTE: cagney/2003-01-18: Is this silly? Rather than pop each |
1837 | frame in turn, should this code just go straight to the relevant | |
1838 | frame and pop that? */ | |
c906108c | 1839 | |
fc70c2a0 AC |
1840 | /* First discard all frames inner-to the selected frame (making the |
1841 | selected frame current). */ | |
1842 | { | |
b04f3ab4 | 1843 | struct frame_id selected_id = get_frame_id (get_selected_frame (NULL)); |
fc70c2a0 AC |
1844 | while (!frame_id_eq (selected_id, get_frame_id (get_current_frame ()))) |
1845 | { | |
1846 | if (frame_id_inner (selected_id, get_frame_id (get_current_frame ()))) | |
1847 | /* Caught in the safety net, oops! We've gone way past the | |
1848 | selected frame. */ | |
8a3fe4f8 | 1849 | error (_("Problem while popping stack frames (corrupt stack?)")); |
fc70c2a0 AC |
1850 | frame_pop (get_current_frame ()); |
1851 | } | |
1852 | } | |
c906108c | 1853 | |
fc70c2a0 AC |
1854 | /* Second discard the selected frame (which is now also the current |
1855 | frame). */ | |
dbe9fe58 | 1856 | frame_pop (get_current_frame ()); |
c906108c | 1857 | |
a1f5b845 | 1858 | /* Store RETURN_VALUE in the just-returned register set. */ |
fc70c2a0 AC |
1859 | if (return_value != NULL) |
1860 | { | |
df407dfe | 1861 | struct type *return_type = value_type (return_value); |
750eb019 AC |
1862 | gdb_assert (gdbarch_return_value (current_gdbarch, return_type, |
1863 | NULL, NULL, NULL) | |
1864 | == RETURN_VALUE_REGISTER_CONVENTION); | |
1865 | gdbarch_return_value (current_gdbarch, return_type, | |
1866 | current_regcache, NULL /*read*/, | |
0fd88904 | 1867 | value_contents (return_value) /*write*/); |
fc70c2a0 | 1868 | } |
1a2aab69 | 1869 | |
fc70c2a0 AC |
1870 | /* If we are at the end of a call dummy now, pop the dummy frame |
1871 | too. */ | |
e8bcf01f AC |
1872 | if (get_frame_type (get_current_frame ()) == DUMMY_FRAME) |
1873 | frame_pop (get_current_frame ()); | |
1a2aab69 | 1874 | |
c906108c | 1875 | /* If interactive, print the frame that is now current. */ |
c906108c SS |
1876 | if (from_tty) |
1877 | frame_command ("0", 1); | |
1878 | else | |
1879 | select_frame_command ("0", 0); | |
1880 | } | |
1881 | ||
033a42c2 MK |
1882 | /* Sets the scope to input function name, provided that the function |
1883 | is within the current stack frame */ | |
c906108c SS |
1884 | |
1885 | struct function_bounds | |
1886 | { | |
1887 | CORE_ADDR low, high; | |
1888 | }; | |
1889 | ||
1890 | static void | |
fba45db2 | 1891 | func_command (char *arg, int from_tty) |
c906108c | 1892 | { |
033a42c2 | 1893 | struct frame_info *frame; |
c906108c SS |
1894 | int found = 0; |
1895 | struct symtabs_and_lines sals; | |
1896 | int i; | |
1897 | int level = 1; | |
033a42c2 | 1898 | struct function_bounds *func_bounds = NULL; |
c906108c | 1899 | |
033a42c2 | 1900 | if (arg != NULL) |
c906108c SS |
1901 | return; |
1902 | ||
033a42c2 | 1903 | frame = parse_frame_specification ("0"); |
c906108c SS |
1904 | sals = decode_line_spec (arg, 1); |
1905 | func_bounds = (struct function_bounds *) xmalloc ( | |
1906 | sizeof (struct function_bounds) * sals.nelts); | |
1907 | for (i = 0; (i < sals.nelts && !found); i++) | |
1908 | { | |
033a42c2 MK |
1909 | if (sals.sals[i].pc == 0 |
1910 | || find_pc_partial_function (sals.sals[i].pc, NULL, | |
1911 | &func_bounds[i].low, | |
1912 | &func_bounds[i].high) == 0) | |
c906108c | 1913 | { |
033a42c2 | 1914 | func_bounds[i].low = func_bounds[i].high = 0; |
c906108c SS |
1915 | } |
1916 | } | |
1917 | ||
1918 | do | |
1919 | { | |
1920 | for (i = 0; (i < sals.nelts && !found); i++) | |
033a42c2 MK |
1921 | found = (get_frame_pc (frame) >= func_bounds[i].low |
1922 | && get_frame_pc (frame) < func_bounds[i].high); | |
c906108c SS |
1923 | if (!found) |
1924 | { | |
1925 | level = 1; | |
033a42c2 | 1926 | frame = find_relative_frame (frame, &level); |
c906108c SS |
1927 | } |
1928 | } | |
1929 | while (!found && level == 0); | |
1930 | ||
1931 | if (func_bounds) | |
b8c9b27d | 1932 | xfree (func_bounds); |
c906108c SS |
1933 | |
1934 | if (!found) | |
a3f17187 | 1935 | printf_filtered (_("'%s' not within current stack frame.\n"), arg); |
033a42c2 MK |
1936 | else if (frame != deprecated_selected_frame) |
1937 | select_and_print_frame (frame); | |
c906108c SS |
1938 | } |
1939 | ||
1940 | /* Gets the language of the current frame. */ | |
1941 | ||
1942 | enum language | |
fba45db2 | 1943 | get_frame_language (void) |
c906108c | 1944 | { |
033a42c2 | 1945 | struct frame_info *frame = deprecated_selected_frame; |
c5aa993b | 1946 | |
033a42c2 | 1947 | if (frame) |
c906108c | 1948 | { |
7ae4c3a5 | 1949 | /* We determine the current frame language by looking up its |
033a42c2 MK |
1950 | associated symtab. To retrieve this symtab, we use the frame |
1951 | PC. However we cannot use the frame PC as is, because it | |
1952 | usually points to the instruction following the "call", which | |
1953 | is sometimes the first instruction of another function. So | |
1954 | we rely on get_frame_address_in_block(), it provides us with | |
1955 | a PC that is guaranteed to be inside the frame's code | |
1956 | block. */ | |
1957 | CORE_ADDR pc = get_frame_address_in_block (frame); | |
1958 | struct symtab *s = find_pc_symtab (pc); | |
1959 | ||
c906108c | 1960 | if (s) |
033a42c2 | 1961 | return s->language; |
c906108c | 1962 | } |
c906108c | 1963 | |
033a42c2 | 1964 | return language_unknown; |
c906108c SS |
1965 | } |
1966 | \f | |
033a42c2 MK |
1967 | |
1968 | /* Provide a prototype to silence -Wmissing-prototypes. */ | |
1969 | void _initialize_stack (void); | |
1970 | ||
c906108c | 1971 | void |
fba45db2 | 1972 | _initialize_stack (void) |
c906108c | 1973 | { |
c5aa993b | 1974 | #if 0 |
c906108c SS |
1975 | backtrace_limit = 30; |
1976 | #endif | |
1977 | ||
1bedd215 AC |
1978 | add_com ("return", class_stack, return_command, _("\ |
1979 | Make selected stack frame return to its caller.\n\ | |
c906108c SS |
1980 | Control remains in the debugger, but when you continue\n\ |
1981 | execution will resume in the frame above the one now selected.\n\ | |
1bedd215 AC |
1982 | If an argument is given, it is an expression for the value to return.")); |
1983 | ||
1984 | add_com ("up", class_stack, up_command, _("\ | |
1985 | Select and print stack frame that called this one.\n\ | |
1986 | An argument says how many frames up to go.")); | |
1987 | add_com ("up-silently", class_support, up_silently_command, _("\ | |
1988 | Same as the `up' command, but does not print anything.\n\ | |
1989 | This is useful in command scripts.")); | |
1990 | ||
1991 | add_com ("down", class_stack, down_command, _("\ | |
1992 | Select and print stack frame called by this one.\n\ | |
1993 | An argument says how many frames down to go.")); | |
c906108c SS |
1994 | add_com_alias ("do", "down", class_stack, 1); |
1995 | add_com_alias ("dow", "down", class_stack, 1); | |
1bedd215 AC |
1996 | add_com ("down-silently", class_support, down_silently_command, _("\ |
1997 | Same as the `down' command, but does not print anything.\n\ | |
1998 | This is useful in command scripts.")); | |
c906108c | 1999 | |
1bedd215 AC |
2000 | add_com ("frame", class_stack, frame_command, _("\ |
2001 | Select and print a stack frame.\n\ | |
c906108c SS |
2002 | With no argument, print the selected stack frame. (See also \"info frame\").\n\ |
2003 | An argument specifies the frame to select.\n\ | |
2004 | It can be a stack frame number or the address of the frame.\n\ | |
2005 | With argument, nothing is printed if input is coming from\n\ | |
1bedd215 | 2006 | a command file or a user-defined command.")); |
c906108c SS |
2007 | |
2008 | add_com_alias ("f", "frame", class_stack, 1); | |
2009 | ||
2010 | if (xdb_commands) | |
2011 | { | |
c5aa993b | 2012 | add_com ("L", class_stack, current_frame_command, |
1bedd215 | 2013 | _("Print the current stack frame.\n")); |
c906108c SS |
2014 | add_com_alias ("V", "frame", class_stack, 1); |
2015 | } | |
1bedd215 AC |
2016 | add_com ("select-frame", class_stack, select_frame_command, _("\ |
2017 | Select a stack frame without printing anything.\n\ | |
c906108c | 2018 | An argument specifies the frame to select.\n\ |
1bedd215 | 2019 | It can be a stack frame number or the address of the frame.\n")); |
c906108c | 2020 | |
1bedd215 AC |
2021 | add_com ("backtrace", class_stack, backtrace_command, _("\ |
2022 | Print backtrace of all stack frames, or innermost COUNT frames.\n\ | |
c906108c | 2023 | With a negative argument, print outermost -COUNT frames.\n\ |
1bedd215 | 2024 | Use of the 'full' qualifier also prints the values of the local variables.\n")); |
c906108c SS |
2025 | add_com_alias ("bt", "backtrace", class_stack, 0); |
2026 | if (xdb_commands) | |
2027 | { | |
2028 | add_com_alias ("t", "backtrace", class_stack, 0); | |
1bedd215 AC |
2029 | add_com ("T", class_stack, backtrace_full_command, _("\ |
2030 | Print backtrace of all stack frames, or innermost COUNT frames \n\ | |
c906108c SS |
2031 | and the values of the local variables.\n\ |
2032 | With a negative argument, print outermost -COUNT frames.\n\ | |
1bedd215 | 2033 | Usage: T <count>\n")); |
c906108c SS |
2034 | } |
2035 | ||
2036 | add_com_alias ("where", "backtrace", class_alias, 0); | |
2037 | add_info ("stack", backtrace_command, | |
1bedd215 | 2038 | _("Backtrace of the stack, or innermost COUNT frames.")); |
c906108c SS |
2039 | add_info_alias ("s", "stack", 1); |
2040 | add_info ("frame", frame_info, | |
1bedd215 | 2041 | _("All about selected stack frame, or frame at ADDR.")); |
c906108c SS |
2042 | add_info_alias ("f", "frame", 1); |
2043 | add_info ("locals", locals_info, | |
1bedd215 | 2044 | _("Local variables of current stack frame.")); |
c906108c | 2045 | add_info ("args", args_info, |
1bedd215 | 2046 | _("Argument variables of current stack frame.")); |
c906108c | 2047 | if (xdb_commands) |
c5aa993b | 2048 | add_com ("l", class_info, args_plus_locals_info, |
1bedd215 | 2049 | _("Argument and local variables of current stack frame.")); |
c906108c SS |
2050 | |
2051 | if (dbx_commands) | |
1bedd215 AC |
2052 | add_com ("func", class_stack, func_command, _("\ |
2053 | Select the stack frame that contains <func>.\n\ | |
2054 | Usage: func <name>\n")); | |
c906108c SS |
2055 | |
2056 | add_info ("catch", catch_info, | |
1bedd215 | 2057 | _("Exceptions that can be caught in the current stack frame.")); |
c906108c SS |
2058 | |
2059 | #if 0 | |
1a966eab AC |
2060 | add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\ |
2061 | "Specify maximum number of frames for \"backtrace\" to print by default."), | |
c906108c | 2062 | &setlist); |
1bedd215 AC |
2063 | add_info ("backtrace-limit", backtrace_limit_info, _("\ |
2064 | The maximum number of frames for \"backtrace\" to print by default.")); | |
c906108c SS |
2065 | #endif |
2066 | } |